TW202315826A - Conveyor and belt tensioning device - Google Patents

Abstract

A conveyor and a belt tensioning device are provided, the belt tensioning device comprises a tensioning drive assembly and at least one movable tensioning assembly, the tensioning drive assembly comprises a wedge block and a wedge driving device, the movable tensioning assembly comprises a drive arm and a first tightening wheel, the wedge block has a wedge-shaped surface, the first end of the drive arm has a reversing surface, and the reversing surface is arranged opposite to the wedge-shaped surface. The first tight wheel is in contact with the transmission belt. Through the cooperation between the wedge surface and the reversing surface, the position of the first tight wheel may be adjusted, so as to adjust the tension strength of the transmission belt. Therefore, it may be beneficial to improve the convenience and accuracy of the tension strength adjustment of the transmission belt.

Description

Conveyor mechanism and belt tensioner

The invention relates to the technical field of conveying mechanisms, in particular to a conveying mechanism and a transmission belt tensioning device.

Belt transmission mechanisms are widely used in fields to transmit power, transport items or other functions. In order to ensure that the belt transmission mechanism can work normally, the tension device is often used to keep the transmission belt in a certain tension state when the transmission belt is installed for the first time, so as to prevent the transmission belt from slipping or falling off. The transmission belt will be stretched and loosened after being used for a period of time. At this time, the tension of the transmission belt needs to be adjusted again, otherwise the belt transmission mechanism may not work normally, and even dangers such as falling objects and equipment failure may occur. The existing tensioning device is insufficient in the convenience of adjusting the tension degree of the transmission belt and the control accuracy of the tension force, and needs to be improved.

The purpose of the embodiments of the present invention is to provide a conveying mechanism and a belt tensioning device, which can solve or improve at least some of the above-mentioned problems in the prior art.

In the first aspect, an embodiment of the present invention provides a conveying mechanism, including at least one set of track lines, the track lines including a belt drive assembly and a belt tensioner; the belt drive assembly includes a driving pulley, a driven pulley, and a drive belt , the driving belt is wound on the driving pulley and the driven pulley; the belt tensioning device includes a tensioning drive assembly and at least one movable tensioning assembly; the tensioning drive assembly includes a wedge and a wedge A block driving device, the wedge driving device is configured to drive the wedge to move along a first straight line, the wedge has a wedge-shaped surface; the movable tensioning assembly includes a transmission arm and a first tensioning wheel, and the transmission The arm has a first end and a second end, the first end of the transmission arm has a reversing surface, the reversing surface is opposite to the wedge-shaped surface, and the second end is connected to the first tensioning wheel ; Wherein, the transmission belt is also in contact with the first tensioning pulley; when the wedge moves along the first straight line, it drives the transmission arm to move along the second straight line, and the second straight line and the first straight line There is a predetermined angle between them.

In some embodiments, the wedge has two wedge surfaces, the two wedge surfaces are respectively a first wedge surface and a second wedge surface, and the first wedge surface and the second wedge surface are respectively It is arranged on opposite sides of the wedge; the belt tensioning device includes two active tensioning assemblies, the two active tensioning assemblies are respectively the first active tensioning assembly and the second active tensioning assembly Assemblies, the reversing surface of the first active tensioning assembly is arranged opposite to the first wedge-shaped surface, and the reversing surface of the second active tensioning assembly is arranged opposite to the second wedge-shaped surface; When the wedge moves along the first straight line, it drives the first movable tensioning component and the second movable tensioning component to move along the second straight line, and the first movable tensioning component and the The direction of motion of the second active tensioning assembly is opposite.

In some embodiments, the transmission arm of the first movable tensioning assembly is a first transmission arm, the transmission arm of the second movable tensioning assembly is a second transmission arm, and the first transmission arm has a guide groove, The guide groove extends along a direction parallel to the second straight line, and the second transmission arm is at least partially disposed in the guide groove.

In some embodiments, the transmission arm includes a main body and a bent part, the bent part is connected to one end of the main body, and the reversing surface is arranged on the side of the bending part close to the transmission arm. One side of the second end; the wedge is arranged between the first end and the second end of the first transmission arm, and is arranged between the first end and the second end of the second transmission arm; The bending part of the first transmission arm has the guide groove, the main body part of the first transmission arm has a first end surface parallel to the second straight line, and the second transmission arm The main body has a second end surface parallel to the second straight line, and the first end surface is in contact with the second end surface.

In some embodiments, the transmission belt tensioning device further includes a detection component configured to detect the position of at least one of the active tensioning components; It is electrically connected with the wedge driving device, and the control circuit is configured to control the operation of the wedge driving device according to the signal of the detection component.

In some embodiments, the belt tensioning device further includes a detection assembly, the detection assembly includes a first sensor, a second sensor and an induction sheet; the second sensor is connected to the first sensor The sensor is arranged at intervals; the induction sheet is connected to the transmission arm; wherein, when the transmission arm is at the first position, the induction sheet triggers the first sensor; when the transmission arm is at the second position , the sensing sheet triggers the second sensor.

In some embodiments, the conveying mechanism includes two sets of track lines, the two sets of track lines are fixed track lines and movable track lines respectively, and the transmission belt of the fixed track line is spaced from the drive belt of the movable track line arranged in parallel and configured to move synchronously; the conveying mechanism also includes a slide rail assembly, the slide rail assembly includes a slide rail and a slider, the extension direction of the slide rail is perpendicular to the fixed track line, and the slide rail assembly The block is slidably arranged on the slide rail, and the movable track line is fixed on the slide block.

In some embodiments, the track line further includes a guide assembly, and the guide assembly includes a plurality of guide rollers, arranged at intervals on one side of the transmission belt, and in rolling contact with the side surface of the transmission belt.

In some embodiments, the conveying mechanism also includes a dust collection assembly, which includes a box body, a dust removal brush, and a dust collection box; the box body has a through hole, and the transmission belt is passed through the through hole The dust removal brush is arranged in the box and below the transmission belt, the dust removal brush is used to contact with the transmission belt to remove the dust on the transmission belt; the dust collection box is arranged on the dust removal brush below.

In some embodiments, the dust collection assembly further includes a dust removal drive device connected to the dust removal brush, and the dust removal drive assembly is configured to drive the dust removal brush close to and away from the transmission belt.

In some embodiments, the conveying mechanism further includes a frame and a sticky roller assembly, the sticky roller assembly includes a sticky roller, a support arm and a regulator; the sticky roller is in contact with the transmission belt; the sticky roller is in contact with the transmission belt; One end of the support arm is connected to the sticky roller, and the other end is pivotally connected to the frame; the adjuster is configured to adjust the position of the support arm.

In the second aspect, the embodiment of the present invention also provides a transmission belt tensioning device, including a tensioning drive assembly and at least one movable tensioning assembly; the tensioning drive assembly includes a wedge and a wedge driving device, and the wedge driving device configured to drive the wedge to move along a first straight line, the wedge has a wedge-shaped surface; the movable tensioning assembly includes a transmission arm and a first tensioning wheel, the transmission arm has a first end and a second end, The first end of the transmission arm has a reversing surface, the reversing surface is opposite to the wedge-shaped surface, the second end is connected to the first tensioning pulley, and the first tensioning pulley is connected to the transmission belt contact; wherein, when the wedge moves along the first straight line, it drives the transmission arm to move along a second straight line, and there is a predetermined included angle between the second straight line and the first straight line.

In some embodiments, the wedge has two wedge surfaces, the two wedge surfaces are respectively a first wedge surface and a second wedge surface, and the first wedge surface and the second wedge surface are respectively It is arranged on opposite sides of the wedge; the belt tensioning device includes two active tensioning assemblies, the two active tensioning assemblies are respectively the first active tensioning assembly and the second active tensioning assembly Assemblies, the reversing surface of the first active tensioning assembly is arranged opposite to the first wedge-shaped surface, and the reversing surface of the second active tensioning assembly is arranged opposite to the second wedge-shaped surface; When the wedge moves along the first straight line, it drives the first movable tensioning component and the second movable tensioning component to move along the second straight line, and the first movable tensioning component and the The direction of motion of the second active tensioning assembly is opposite.

In some embodiments, the transmission arm of the first movable tensioning assembly is a first transmission arm, the transmission arm of the second movable tensioning assembly is a second transmission arm, and the first transmission arm has a guide groove, The guide groove extends along a direction parallel to the second straight line, and the second transmission arm is at least partially disposed in the guide groove.

In some embodiments, the transmission arm includes a main body and a bent part, the bent part is connected to one end of the main body, and the reversing surface is arranged on the side of the bending part close to the transmission arm. One side of the second end; the wedge is arranged between the first end and the second end of the first transmission arm, and is arranged between the first end and the second end of the second transmission arm; The bending part of the first transmission arm has the guide groove, the main body part of the first transmission arm has a first end surface parallel to the second straight line, and the second transmission arm The main body has a second end surface parallel to the second straight line, and the first end surface is in contact with the second end surface.

In some embodiments, the belt tensioning device further includes a detection assembly, the detection assembly includes a first sensor, a second sensor and an induction sheet; the second sensor is connected to the first sensor The sensor is arranged at intervals; the induction sheet is connected to the transmission arm; wherein, when the transmission arm is at the first position, the induction sheet triggers the first sensor; when the transmission arm is at the second position , the sensing sheet triggers the second sensor.

An embodiment of the present invention provides a conveying mechanism and a drive belt tensioning device. The drive belt tensioning device includes a tensioning drive assembly and at least one movable tensioning assembly. The tensioning drive assembly includes a wedge and a wedge drive device. The movable tensioning assembly includes The transmission arm and the first tensioning wheel, the wedge block has a wedge-shaped surface, the first end of the transmission arm has a reversing surface, and the reversing surface is opposite to the wedge-shaped surface. The first tensioner is in contact with the transmission belt, and the position of the first tensioner can be adjusted through the cooperation of the wedge-shaped surface and the reversing surface, thereby adjusting the tension of the transmission belt, thereby facilitating the adjustment of the tension of the transmission belt convenience and precision.

The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. The present invention can be fully understood without the description of these detailed parts by those having ordinary skill in the art. In order not to obscure the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

Furthermore, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires, the words "including", "including" and similar words in the description should be interpreted as inclusive rather than exclusive or exhaustive; that is, "including but not limited to".

In the description of the present invention, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

When an element or layer is referred to as being "on," "bonded to," "connected to," or "coupled to" another element or layer, it can be directly on the other element or layer. or layer, be directly bonded, connected or coupled to another element or layer, or intervening elements or layers may be present. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The embodiment of the present invention relates to a conveying mechanism, which is used for conveying and transferring articles. Referring to Figures 1 to 8, the conveying mechanism includes at least one set of trajectory lines 1, 1a, 1b. The track lines 1 a , 1 b comprise a belt drive assembly 10 comprising a driving pulley 11 , at least one driven pulley 12 and a drive belt 13 . The transmission belt 13 is wound on the driving pulley 11 and the driven pulley 12 to form the belt transmission assembly 10 . The belt drive assembly 10 also includes a pulley driving device 14 , which is connected to the driving pulley 11 and drives the driving pulley 11 to rotate to provide driving force to the driving belt 13 . The pulley drive device 14 may include a motor or other suitable devices for driving the drive pulley 11 .

In some embodiments, as shown in FIGS. 1 to 8 , the transmission belt 13 is an endless transmission belt 13 , and the driving pulley 11 and the driven pulley 12 are arranged inside the endless transmission belt 13 . The driving pulley 11 is connected with the pulley driving device 14, and the pulley driving device 14 drives the driving pulley 11 to rotate, thereby driving the transmission belt 13 to move along the direction in which it is wound.

Referring to FIGS. 1 to 4 , in some embodiments, the delivery mechanism includes a set of track lines 1 . The width of the transmission belt 13 matches the size of the items to be conveyed, and the items are placed on the transmission belt 13, and the transmission belt 13 can drive the items to move.

5 to 7, in some embodiments, the conveying mechanism includes two sets of track lines 1a, 1b, the two sets of track lines 1a, 1b are arranged at intervals, and the transmission belts 13 of the two sets of track lines 1a, 1b are arranged in parallel and move synchronously. When it is necessary to transport an article with a large width, the two ends of the article can be placed on the transmission belts 13 of the two sets of track lines 1a and 1b respectively, so that the article spans between the two sets of track lines 1a and 1b, and the middle of the article Suspended, can reduce the use area of driving belt 13 thus.

In one embodiment, two sets of track lines 1a, 1b are fixedly arranged on the ground, and the distance between the two sets of track lines 1a, 1b is designed according to the size of the item to be transported, so as to be able to carry the item smoothly.

In another embodiment, referring to FIG. 5 to FIG. 7 , the two sets of track lines 1a and 1b are respectively a set of fixed track lines 1a and a set of movable track lines 1b. The conveying mechanism also includes a sliding rail assembly 70 , and the sliding rail assembly 70 includes a sliding rail 71 and a sliding block 72 . The extending direction of the slide rail 71 is substantially perpendicular to the fixed track line 1 a , the slide block 72 is slidably disposed on the slide rail 71 , and the movable track line 1 b is fixed on the slide block 72 . The movable track line 1b can move along the slide rail 71 to adjust the distance between the movable track line 1b and the fixed track line 1a, so as to meet the needs of conveying items of different sizes and make the conveying mechanism more adaptable.

In some embodiments, referring to Fig. 2, Fig. 4, Fig. 5 and Fig. 8, the conveying mechanism includes a dust collecting assembly 50, the dust collecting assembly 50 is used to clean and collect the dust on the surface of the driving belt 13, so as to meet the application scenarios of the conveying mechanism requirements for ambient dust concentration.

Fig. 9 is a schematic view of the internal structure of a dust collection assembly according to an embodiment of the present invention. Referring to FIG. 8 and FIG. 9 , the dust collection assembly 50 includes a box body 51 , a dust removal brush 52 and a dust collection box 53 . The dust removal brush 52 and the dust collection box 53 are accommodated in the box body 51 . The dust removal brush 52 is used for contacting with the surface of the transmission belt 13 to remove the dust on the surface of the transmission belt 13 . In an optional embodiment, the dust removal brush 52 can be an antistatic brush, and the bristles of the dust removal brush 52 can be arranged obliquely to the transmission belt 13 according to the moving direction of the transmission belt 13 .

In some embodiments, the dust removal brush 52 is arranged at a fixed position and keeps in contact with the transmission belt 13 to remove dust on the surface of the transmission belt 13 .

In some embodiments, referring to FIG. 9 , the dust collection assembly 50 further includes a dust removal driving device 54 . The dust removal drive device 54 is connected with the dust removal brush 52, and the dust removal drive assembly is used to drive the dust removal brush 52 to move, so that the dust removal brush 52 can approach or move away from the transmission belt 13 as required. In one embodiment, the dust removal drive device 54 periodically drives the dust removal brush 52 to move to perform multiple cleaning cycles; in one cleaning cycle, the dust removal drive device 54 first drives the dust removal brush 52 close to the transmission belt 13 to clean the transmission belt 13, After the dust removal brush 52 contacts with the transmission belt 13 for a predetermined time, the dust removal driving device 54 drives the dust removal brush 52 away from the transmission belt 13 . Thus, while the surface of the transmission belt 13 can be kept clean, the abrasion of the transmission belt 13 caused by the contact between the dust removal brush 52 and the transmission belt 13 is reduced.

The box body 51 is provided with a through hole 511, and the transmission belt 13 is passed through the through hole 511. When the transmission belt 13 continues to advance, each part on the transmission belt 13 passes through the dust collection assembly 50 in sequence. When the transmission belt 13 enters the box body 51, the dust removal The brush 52 can clean a section of the transmission belt 13 that enters the casing 51 . Optionally, the dust removal brush 52 can be arranged under the transmission belt 13, and the dust collection box 53 is arranged under the dust removal brush 52. When the dust removal brush 52 was in contact with the surface of the transmission belt 13, the swept dust would fall to In the dust box 53. The staff can regularly take out the dust box 53 for cleaning, and process the collected dust. Optionally, the dust collection box 53 can be set in the form of a drawer, and the lower side of the box body 51 is provided with an opening 512, and the dust collection box 53 can be taken out from the opening 512 by pulling, which is convenient for use. Optionally, an observation window can also be provided on the box body 51 , and the observation window can be made of an antistatic transparent acrylic plate, so as to facilitate observation of the working condition of the dust collection assembly 50 .

Referring to FIG. 2 , FIG. 4 , FIG. 5 and FIG. 8 , in some embodiments, the conveying mechanism includes at least one sticky dust roller assembly 60 , and the sticky dust roller assembly 60 cleans the dust on the surface of the transmission belt 13 by adhesion.

Fig. 10 is a schematic structural view of a sticky roller assembly according to an embodiment of the present invention. Referring to FIG. 10 , in one embodiment, the sticky roller assembly 60 includes at least one sticky roller 61 , and the sticky roller 61 can roll on the surface of the transmission belt 13 to adhere the dust on the surface of the transmission belt 13 . The sticky roller assembly 60 may also include a support arm 62 and an adjuster 63. One end of the support arm 62 is connected to the sticky roller 61, and the other end is pivotally connected to a fixed structure such as a frame 80 on the conveying mechanism, thereby sticking dust The roller 61 can swing around the other end of the support arm 62 within a certain range. The adjuster 63 is used to adjust the angle of the support arm 62 to adjust the position of the sticky roller 61 so that the sticky roller 61 can be in contact with the transmission belt 13 .

The specific structure of the regulator 63 can be selected arbitrarily according to needs. In one embodiment, referring to FIG. 10 , the adjuster 63 includes a fixing block 631 and an adjusting screw 632. The fixing block 631 is provided with a threaded through hole, and the adjusting screw 632 is passed through the threaded through hole and one end is connected to the middle of the support arm 62. The abutment serves as a fulcrum of the support arm 62; by changing the position where the adjusting screw 632 is screwed into the threaded through hole of the fixing block 631, the angle of the support arm 62 can be adjusted, thereby changing the position of the sticky roller 61.

In some embodiments, referring to FIG. 2 , FIG. 4 , FIG. 5 and FIG. 8 , the track lines 1 , 1 a , 1 b include both the dust collecting assembly 50 and the sticky roller assembly 60 . Preferably, the sticky dust roller assembly 60 is disposed downstream of the dust collection assembly 50 . That is, when the transmission belt 13 advances, a section of the transmission belt 13 first passes through the dust collection assembly 50, and then the sticky dust roller 61 can adhere the residual dust to the transmission belt 13 that has been cleaned by the dust removal brush 52, thereby better maintaining the transmission belt. 13 The cleanliness of the surface.

In some embodiments, referring to FIG. 1 , FIG. 2 , FIG. 5 , FIG. 6 and FIG. 8 , the track lines 1, 1a, 1b further include a guide assembly 40, which is used to guide the movement of the transmission belt 13, Avoid lateral oscillation of the transmission belt 13 during movement.

Fig. 11 is a schematic structural view of a guide assembly according to an embodiment of the present invention. Referring to Fig. 1, Fig. 2 and Fig. 11, in some embodiments, the guide assembly 40 includes a plurality of guide rollers 41, and the plurality of guide rollers 41 are arranged on one side of the transmission belt 13 according to predetermined intervals, and the arrangement direction of the guide rollers 41 is the same as The direction of travel of the drive belt 13 matches. When the transmission belt 13 is advancing, the guide roller 41 is in rolling contact with the side of the transmission belt 13 . Compared with the way of guiding the transmission belt 13 by sliding contact, the frictional force of guiding by rolling contact is smaller, and the wear and tear on the transmission belt 13 is smaller. Optionally, the guide assembly 40 can also include a guide bar 42, and a plurality of guide rollers 41 can be installed on the guide bar 42, thereby facilitating the installation of the guide assembly 40 on the side of the transmission belt 13, and helping to ensure the position of the guide rollers 41 accuracy.

The embodiment of the present invention also relates to a transmission belt tensioning device 20, which is used to keep the transmission belt at a predetermined tension. In some embodiments, the driving belt tensioning device 20 can be applied to the conveying mechanism in at least some embodiments of the present invention, so as to ensure that the belt driving assembly 10 can work normally. Certainly, the transmission belt tensioning device in the embodiment of the present invention is not limited to the application in the conveying mechanism of the embodiment of the present invention, and can also be applied in other scenarios where the transmission belt needs to be tensioned.

1 to 15, in some embodiments, the drive belt tensioner 20 includes a tension drive assembly 21 and at least one active tension assembly 22, 22a, 22b, and the active tension assembly 22, 22a, 22b is used to communicate with the drive belt 13, the tension drive assembly 21 is used to adjust the position of the movable tension assembly 22, 22a, 22b so that the transmission belt 13 has a predetermined tension degree. The movable tensioning assembly 22, 22a, 22b comprises a first tensioning wheel 222, and the transmission belt 13 can also move along the surface of the first tensioning wheel 222 when traveling, by adjusting the position of the first tensioning wheel 222, the second tensioning wheel 222 can be adjusted. The force exerted by the tensioning wheel 222 on the transmission belt 13 is used to adjust the tension of the transmission belt 13. The tension is controllable and the adjustment is relatively accurate.

The first tensioning pulley 222 can be in contact with the inner side of the endless transmission belt 13 , or can be in contact with the outer side of the transmission belt 13 , which can be set according to the arrangement positions of the driving pulley 11 and the driven pulley 12 . For example, referring to FIG. 4 , FIG. 8 and FIG. 13 , the first tensioning wheel 222 is in contact with the outside of the endless transmission belt 13 , and the tension of the transmission belt 13 can be increased by pushing the transmission belt 13 inward.

In some embodiments, referring to FIG. 8 , FIG. 12 to FIG. 15 , the tension driving assembly 21 includes a wedge 211 and a wedge driving device 212 , the driving device is connected with the wedge 211 and is used to drive the wedge 211 to move. The wedge block 211 is provided with wedge-shaped surfaces 2111, 2111a, 2111b. The movable tensioning assembly 22, 22a, 22b also includes a transmission arm 221, 221a, 221b, the transmission arm 221, 221a, 221b has a first end and a second end, and the first end of the transmission arm 221, 221a, 221b has a reversing surface 2211 , the reversing surface 2211 on the transmission arm 221 , 221a , 221b is opposite to the corresponding wedge-shaped surface 2111 , 2111a , 2111b on the wedge block 211 . The first tensioner 222 is mounted at the second end of the transmission arm 221, 221a, 221b. The driving device can drive the wedge 211 to move along the first straight line L1, the wedge surfaces 2111, 2111a, 2111b are inclined to the first straight line L1, and the reversing surface 2211 matches the wedge surfaces 2111, 2111a, 2111b. During operation, when the wedge driving device 212 drives the wedge 211 to move along the first straight line L1, the wedge-shaped surfaces 2111, 2111a, 2111b and the reversing surface 2211 are squeezed to drive the transmission arms 221, 221a, 221b to move along the second straight line L2 , wherein, there is a predetermined included angle between the second straight line L2 and the first straight line L1. In one embodiment, referring to FIG. 8 , FIG. 12 , FIG. 13 , and FIG. 15 , the second straight line L2 is perpendicular to the first straight line L1 , that is, the angle between the second straight line L2 and the first straight line L1 is 90°. Certainly, the included angle between the second straight line L2 and the first straight line L1 is not limited to 90°, and the specific value of the predetermined included angle can be adjusted to other angles as required. The specific corresponding directions in space of the first straight line L1 and the second straight line L2 can be set as required. In this embodiment, the extending direction of the first straight line L1 is a vertical direction, and the extending direction of the second straight line L2 is a horizontal direction.

The specific form of the wedge driving device 212 can be selected according to the demand for driving the wedge 211, for example, it can include a cylinder, a linear motor or other driving structures. In this embodiment, the wedge driving device 212 includes a cylinder 2121 and a pressure regulating valve 2122, the pressure regulating valve 2122 is connected to the cylinder 2121 through a gas pipe (not shown), and the pressure regulating valve 2122 regulates the pressure gas in the cylinder 2121 to drive Wedge 211 moves.

In some embodiments, referring to FIG. 12 to FIG. 15 , the drive belt tensioning device 20 may further include one or more guide blocks 24, the guide blocks 24 have guide grooves parallel to the second straight line L2, and the drive arms 221, 221a, 221b is at least partially disposed in the guide groove of the guide block 24 and can move along the guide groove, so as to stabilize and guide the transmission arms 221, 221a, 221b.

In some embodiments, referring to Fig. 12 and Fig. 13, there is one active tensioning assembly 22, and the wedge-shaped surfaces 2111, 2111a, 2111b of the wedge 211 are in contact with the reversing surface 2211 on the active tensioning assembly 22, so that the drive belt 13 for tensioning.

In other embodiments, referring to Fig. 1, Fig. 3, Fig. 8, Fig. 14 to Fig. 17, there are two active tensioning components. Referring to Figures 14 to 17, the two active tensioning assemblies are respectively a first active tensioning assembly 22a and a second active tensioning assembly 22b. The wedge 211 has two wedge surfaces, the two wedge surfaces are respectively a first wedge surface 2111a and a second wedge surface 2111b, and the first wedge surface 2111a and the second wedge surface 2111b are respectively arranged on opposite sides of the wedge 211 . Optionally, the first wedge-shaped surface 2111a and the second wedge-shaped surface 2111b may be arranged symmetrically. The reversing surface 2211 of the first movable tensioning assembly 22a is disposed opposite to the first wedge-shaped surface 2111a, and the reversing surface 2211 of the second movable tensioning assembly 22b is disposed opposite to the second wedge-shaped surface 2111b. When the wedge 211 moves along the first straight line L1, it can simultaneously drive the first movable tensioning assembly 22a and the second movable tensioning assembly 22b to move along the second straight line L2. In one embodiment, the movement directions of the first active tensioning assembly 22a and the second active tensioning assembly 22b are opposite.

In some embodiments, referring to Fig. 14 to Fig. 17, the transmission arm 221 of the first movable tensioning assembly 22a is the first transmission arm 221a, the transmission arm 221 of the second movable tensioning assembly 22b is the second transmission arm 221b, the first A transmission arm 221a has a guide groove 2212 extending along a direction parallel to the second straight line L2, and the second transmission arm 221b is at least partially disposed in the guide groove 2212 . Thus, the first transmission arm 221a and the second transmission arm 221b can cooperate with each other to play a guiding role, and at the same time, mutual interference between the motions of the two can be avoided.

In some embodiments, referring to FIG. 13 to FIG. 17, the transmission arm 221, 221a, 221b includes a main body portion 2213 and a bent portion 2214, the bent portion 2214 is connected to one end of the main body portion 2213, for example, the bent portion 2214 may be perpendicular to Main body part 2213. The reversing surface 2211 is disposed on a side of the bending portion 2214 close to the second ends of the transmission arms 221 , 221 a , 221 b. Then the wedge 211 is arranged between the first end and the second end of the transmission arm 221, 221a, 221b, for example, the wedge 211 in Fig. 15 is arranged between the first end and the second end of the first transmission arm 221a , and disposed between the first end and the second end of the second transmission arm 221b. In this way, the horizontal arrangement of the transmission belt tensioning device 20 can be made more compact, and at the same time, it is beneficial to the stability of the transmission arms 221, 221a, 221b.

14, 16 and 17, the bending portion 2214 of the first transmission arm 221a has a guide groove 2212, the main body portion 2213 of the second transmission arm 221b has a second end surface 2216 parallel to the second straight line L2, and the first transmission arm 221b has a second end surface 2216 parallel to the second straight line L2. The main body portion 2213 of the arm 221 a has a first end surface 2215 parallel to the second straight line L2 , and the first end surface 2215 is in contact with the second end surface 2216 . Thus, the first transmission arm 221a and the second transmission arm 221b can cooperate with each other to play a guiding and stabilizing role.

In some embodiments, referring to FIG. 13 , the transmission belt tensioning device 20 may also include a fixed tensioning assembly, the fixed tensioning assembly includes a second tensioning wheel 25, the position of the second tensioning wheel 25 is relatively fixed, and is arranged on the transmission belt. 13 and is in contact with the outer surface of the drive belt 13. The second tensioning wheel 25 can guide the winding direction of the transmission belt 13 , and can also be used to cooperate with the movable tensioning assembly 22 to tension the transmission belt 13 .

In some embodiments, referring to FIG. 18 , the conveying mechanism further includes a control circuit 30, the control circuit 30 includes a tension adjustment module, the tension adjustment module is electrically connected to the wedge drive device 212, and is used to control the wedge drive device 212 to work to Make the first tension pulley 222 reach or maintain a predetermined position.

In some embodiments, the conveying mechanism further includes a detection component 23, which is used to detect the position of at least one active tensioning component 22, 22a, 22b, and then can be determined by the position of the active tensioning component 22, 22a, 22b The tension condition of transmission belt 13. Referring to Fig. 18, the tension adjustment module of the control circuit 30 is also electrically connected with the detection component 23, the control circuit 30 receives the signal sent by the detection component 23 and can indicate the position of at least one movable tension component 22, 22a, 22b, and according to the detection The signal of the assembly 23 controls the operation of the wedge driving device 212, thereby, the detection and automatic adjustment of the tension of the transmission belt 13 can be realized.

The detection assembly 23 may include any type of device or element capable of detecting the position of one or more components in the active tension assembly 22, 22a, 22b, for example may include a Hall sensor, a photoelectric sensor, a proximity switch, Limit switches or other sensors. In some embodiments, referring to FIG. 12 to FIG. 15 , the detection component 23 includes one or more shading photoelectric sensors and a sensing piece 233, the sensing piece 233 is connected to the transmission arm 221 or 221b, when the transmission arm 221 or 221b When moving to a predetermined position, the sensing piece 233 blocks the optical path of the photoelectric sensor, triggering the photoelectric sensor to output a switch control signal.

Further, in some embodiments, referring to FIG. 12 to FIG. 15 , the detection component 23 includes a first sensor 231 and a second sensor 232, the first sensor 231 and the second sensor 232 are spaced apart, And the connection line between the first sensor 231 and the second sensor 232 is substantially parallel to the second straight line L2. Optionally, the detection assembly 23 can also include a limit block 234, and the limit block 234 is parallel to the second straight line L2. The first sensor 231 and the second sensor 232 are installed on the limit block 234, which can facilitate The height positions of the first sensor 231 and the second sensor 232 are guaranteed.

The positions of the first sensor 231 and the second sensor 232 are set according to the positions of the movable tensioning components 22, 22a, 22b in different working states, so that when the transmission arm 221, 221a and/or 221b is in the first position , the sensing sheet 233 triggers the first sensor 231; when the transmission arm 221, 221a and/or 221b is located at the second position, the sensing sheet 233 triggers the second sensor 232. When the transmission belt 13 is installed, the tension drive assembly 21 can be controlled by the control circuit to drive the movable tension assembly 22, 22a, 22b to move, so that the transmission belt 13 can be kept at an appropriate tension level. The position is recorded as the first position, and then the first sensor 231 is installed so that the sensing sheet 233 triggers the first sensor 231 . According to the tensile performance of the transmission belt 13, the second sensor 232 is fixed so that the transmission arm 221, 221a and/or 221b moves until the sensing piece 233 triggers the second sensor 232, and the transmission belt 13 has exceeded the limit The position of the transmission arm 221 , 221 a and/or 221 b at this time is recorded as the second position, and the second sensor 232 is separated from the first sensor 231 by a certain distance. That is, when the transmission arm 221, 221a and/or 221b is in the first position, the transmission belt 13 is tensioned; The tightness decreases; when the transmission arm 221, 221a and/or 221b moves to the second position, it indicates that the transmission belt 13 is broken.

After the transmission belt 13 is installed, when the transmission belt 13 becomes loose, the transmission arms 221, 221a and/or 221b gradually move from the first position to the direction close to the second position, so that the induction piece 233 leaves the first sensor 231 and cannot trigger the second position. A sensor 231 . When the control circuit 30 does not receive the switch control signal sent by the first sensor 231 and does not receive the signal sent by the first sensor 231, it indicates that the transmission belt 13 has loosened; Continue to push the movable tensioning assembly 22, 22a, 22b to move to tension the transmission belt 13, and at the same time adjust the position of the first sensor 231 again, so that the first sensor 231 is triggered by the induction sheet 233, so that the belt 13 can be continuously adjusted. The tension state of the transmission belt 13 is monitored.

And when the transmission belt 13 breaks, the transmission belt 13 moves from the first position to the second position, so that the sensing sheet 233 triggers the second sensor 232 . When the control circuit 30 receives the signal sent by the second sensor 232, it indicates that the transmission belt 13 has broken, and a notification can be sent to the staff accordingly, so that the staff can replace the transmission belt 13 in time, reducing the work of conveying goods impact.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

L1: first straight line L2: second straight line 1: track line 1a: fixed track line 1b: Active track line 10: Belt transmission components 11: Driving pulley 12: driven pulley 13: Drive belt 14: Pulley drive 20: Drive belt tensioner 21: Tension drive assembly 211: wedge 2111: wedge-shaped surface 2111a: First wedge-shaped surface 2111b: Second wedge face 212: Wedge driving device 2121: Cylinder 2122: pressure regulating valve 22: Movable tensioning components 22a: The first active tensioning assembly 22b: The second active tensioning component 221: transmission arm 221a: first transmission arm 221b: second transmission arm 2211: reversing surface 2212: guide groove 2213: Main Department 2214: bending part 2215: first end face 2216: Second end face 222: The first tensioner 23: Detection components 231: The first sensor 232: Second sensor 233:Sensor sheet 234: limit block 24: guide block 25: Second tensioner 30: Control circuit 40: guide assembly 41: guide roller 42: guide bar 50: Dust collection component 51: Box 511: Through hole 512: opening 52: Dust removal brush 53: Dust box 54: Dust removal driving device 60: Sticky roller assembly 61: Sticky roller 62: Support arm 63: Regulator 631: fixed block 632: Adjusting screw 70: slide rail assembly 71: slide rail 72: Slider 80: Rack

Fig. 1 is a three-dimensional structural schematic view of a conveying mechanism according to an embodiment of the present invention viewed from a viewing angle; Fig. 2 is a three-dimensional structural schematic view of a conveying mechanism according to an embodiment of the present invention viewed from another perspective; Fig. 3 is the front view of the conveying mechanism of an embodiment of the present invention; Fig. 4 is the rear view of the conveying mechanism of an embodiment of the present invention; Fig. 5 is a three-dimensional structural schematic diagram of a conveying mechanism according to another embodiment of the present invention; Fig. 6 is a schematic top view of a conveying mechanism according to another embodiment of the present invention; Fig. 7 is a schematic side view of a conveying mechanism according to another embodiment of the present invention; Fig. 8 is a schematic diagram of the principle of the track line of an embodiment of the present invention; Fig. 9 is a schematic structural view of a dust collection assembly according to an embodiment of the present invention; Fig. 10 is a schematic structural view of a sticky roller assembly according to an embodiment of the present invention; Fig. 11 is a schematic structural view of a guide assembly according to an embodiment of the present invention; Fig. 12 is a structural schematic diagram of a drive belt tensioning device according to an embodiment of the present invention; Fig. 13 is a schematic diagram of an application scenario of a drive belt tensioning device according to an embodiment of the present invention; Fig. 14 is a schematic perspective view of the three-dimensional structure of a drive belt tensioning device according to another embodiment of the present invention; Fig. 15 is a structural schematic diagram of a drive belt tensioning device according to another embodiment of the present invention; Fig. 16 is a schematic diagram of the assembly relationship between the first active tensioning assembly and the second active tensioning assembly according to an embodiment of the present invention; Fig. 17 is a schematic diagram of the relative positions of the first active tensioning assembly and the second active tensioning assembly according to an embodiment of the present invention; Fig. 18 is a schematic module block diagram of the conveying mechanism detecting and adjusting the tension degree of the transmission belt according to an embodiment of the present invention.

L1: first straight line

L2: second straight line

211: wedge

2111a: First wedge-shaped surface

2111b: Second wedge face

212: Wedge driving device

221a: first transmission arm

221b: second transmission arm

2211: reversing surface

222: The first tensioner

231: The first sensor

232: Second sensor

233:Sensor sheet

234: limit block

24: guide block

Claims (13)

A conveying mechanism comprising at least one set of track lines (1, 1a, 1b), said track lines (1, 1a, 1b) comprising: The belt drive assembly (10) includes a driving pulley (11), a driven pulley (12) and a drive belt (13), and the drive belt (13) is wound around the drive pulley (11) and the driven belt wheel (12); and A transmission belt tensioning device (20), the transmission belt tensioning device (20) comprising: The tension driving assembly (21) includes a wedge (211) and a wedge driving device (212), and the wedge driving device (212) is configured to drive the wedge (211) to move along a first straight line (L1) , the wedge (211) has a wedge-shaped surface (2111, 2111a, 2111b); and At least one active tensioning assembly (22, 22a, 22b), the active tensioning assembly (22, 22a, 22b) includes a transmission arm (221, 221a, 221b) and a first tensioning wheel (222), the transmission The arm (221, 221a, 221b) has a first end and a second end, the first end of the transmission arm (221, 221a, 221b) has a reversing surface (2211), and the reversing surface (2211) is connected to the The wedge-shaped surfaces (2111, 2111a, 2111b) are arranged oppositely, and the second end is connected to the first tensioning pulley (222); Wherein, the transmission belt (13) is also in contact with the first tensioning pulley (222); When the wedge (211) moves along the first straight line (L1), it drives the transmission arm (221, 221a, 221b) to move along the second straight line (L2), and the second straight line (L2) is in line with the There is a predetermined included angle between the first straight lines ( L1 ). The conveying mechanism according to claim 1, wherein the wedge (211) has two wedge surfaces (2111a, 2111b), and the two wedge surfaces (2111a, 2111b) are respectively the first wedge surfaces (2111a ) and a second wedge surface (2111b), the first wedge surface (2111a) and the second wedge surface (2111b) are respectively arranged on opposite sides of the wedge (211); The drive belt tensioning device (20) includes two active tensioning assemblies, the two active tensioning assemblies are respectively a first active tensioning assembly (22a) and a second active tensioning assembly (22b), so The reversing surface (2211) of the first active tensioning assembly (22a) is opposite to the first wedge-shaped surface (2111a), and the reversing surface (2211) of the second active tensioning assembly (22b) 2211) is arranged opposite to the second wedge-shaped surface (2111b); When the wedge (211) moves along the first straight line (L1), it drives the first active tensioning assembly (22a) and the second active tensioning assembly (22b) along the second straight line (L2 ) movement, and the movement directions of the first active tensioning assembly (22a) and the second active tensioning assembly (22b) are opposite. The conveying mechanism according to claim 2, wherein the transmission arm of the first active tensioning assembly (22a) is the first transmission arm (221a), and the transmission arm of the second active tensioning assembly (22b) is the first transmission arm Two transmission arms (221b), the first transmission arm (221a) has a guide groove (2212), the guide groove (2212) extends in a direction parallel to the second straight line (L2), the second transmission The arm (221b) is at least partially disposed in the guide groove (2212). The conveying mechanism according to claim 3, wherein the transmission arm (221, 221a, 221b) includes a main body part (2213) and a bending part (2214), and the bending part (2214) is connected to the main body part ( 2213), the reversing surface (2211) is arranged on the side of the bending portion (2214) close to the second end of the transmission arm (221, 221a, 221b); The wedge (211) is arranged between the first end and the second end of the first transmission arm (221a), and is arranged between the first end and the second end of the second transmission arm (221b) between; The bending part (2214) of the first transmission arm (221a) has the guide groove (2212), and the main body part (2213) of the first transmission arm (221a) has a The first end surface (2215) of the second straight line (L2), the main body portion (2213) of the second transmission arm (221b) has a second end surface (2216) parallel to the second straight line (L2), so The first end surface (2215) is in contact with the second end surface (2216). The conveying mechanism according to claim 1, wherein the drive belt tensioning device (20) further includes: a detection assembly (23) configured to detect the position of at least one of said active tensioning assemblies (22, 22a, 22b); The delivery mechanism also includes: A control circuit (30), electrically connected to the detection component (23) and the wedge driving device (212), the control circuit (30) configured to control the The wedge driving device (212) works. The conveying mechanism according to claim 1, wherein the drive belt tensioning device (20) further includes a detection component (23), and the detection component (23) includes: first sensor (231); a second sensor (232), spaced apart from the first sensor (231); and An induction piece (233), connected to the transmission arm (221, 221a, 221b); Wherein, when the transmission arm (221, 221a, 221b) is in the first position, the induction piece (233) triggers the first sensor (231); When the transmission arm (221, 221a, 221b) is in the second position, the induction piece (233) triggers the second sensor (232). The conveying mechanism according to claim 1, wherein the conveying mechanism comprises two sets of track lines (1a, 1b), and the two sets of track lines (1a, 1b) are fixed track lines (1a) and movable tracks respectively line (1b), the drive belt (13) of the fixed track line (1a) and the drive belt (13) of the movable track line (1b) are arranged in parallel at intervals and configured to move synchronously; The conveying mechanism also includes a slide rail assembly (70), the slide rail assembly (70) includes a slide rail (71) and a slide block (72), and the extension direction of the slide rail (71) is in line with the fixed track line (1a) is perpendicular to each other, the slider (72) is slidably arranged on the slide rail (71), and the movable track line (1b) is fixed to the slider (72). The conveying mechanism according to claim 1, wherein the track line (1, 1a, 1b) further includes a guide assembly (40), and the guide assembly (40) includes: A plurality of guide rollers (41) are arranged at intervals on one side of the transmission belt (13), and are in rolling contact with the side surface of the transmission belt (13). The conveying mechanism according to claim 1, wherein the conveying mechanism further includes a dust collection assembly (50), and the dust collection assembly (50) includes: The box body (51) has a through hole (511), and the transmission belt (13) is passed through the through hole (511); A dust removal brush (52), arranged in the box (51) and below the transmission belt (13), the dust removal brush (52) is used to contact the transmission belt (13) to clean the transmission belt (13) on dust; and The dust collection box (53) is arranged under the dust removal brush (52). The conveying mechanism according to claim 9, wherein the dust collection component (50) further includes: The dust removal driving device (54) is connected with the dust removal brush (52), and the dust removal drive assembly is configured to drive the dust removal brush (52) close to and away from the transmission belt (13); Wherein the conveying mechanism further includes a frame (80) and a sticky dust roller assembly (60), and the sticky dust roller assembly (60) includes: The sticky dust roller (61) is in contact with the transmission belt (13); a support arm (62), one end of which is connected to the sticky dust roller (61), and the other end is pivotally connected to the frame (80); and The adjuster (63) is configured to adjust the position of the support arm (62). A drive belt tensioner, wherein the drive belt tensioner (20) comprises: The tension driving assembly (21) includes a wedge (211) and a wedge driving device (212), and the wedge driving device (212) is configured to drive the wedge (211) to move along a first straight line (L1) , the wedge (211) has a wedge-shaped surface (2111, 2111a, 2111b); and At least one active tensioning assembly (22, 22a, 22b), the active tensioning assembly (22, 22a, 22b) includes a transmission arm (221, 221a, 221b) and a first tensioning wheel (222), the transmission The arm (221, 221a, 221b) has a first end and a second end, the first end of the transmission arm (221, 221a, 221b) has a reversing surface (2211), and the reversing surface (2211) is connected to the The wedge-shaped surfaces (2111, 2111a, 2111b) are arranged oppositely, the second end is connected to the first tensioning wheel (222), and the first tensioning wheel (222) is in contact with the transmission belt (13); Wherein, when the wedge (211) moves along the first straight line (L1), it drives the transmission arm (221, 221a, 221b) to move along the second straight line (L2), and the second straight line (L2) and There is a predetermined angle between the first straight lines ( L1 ). The drive belt tensioner according to claim 11, wherein the wedge (211) has two wedge surfaces (2111a, 2111b), and the two wedge surfaces (2111a, 2111b) are first wedge surfaces respectively (2111a) and a second wedge surface (2111b), the first wedge surface (2111a) and the second wedge surface (2111b) are respectively arranged on opposite sides of the wedge (211); The drive belt tensioning device (20) includes two active tensioning assemblies, the two active tensioning assemblies are respectively a first active tensioning assembly (22a) and a second active tensioning assembly (22b), so The reversing surface (2211) of the first active tensioning assembly (22a) is opposite to the first wedge-shaped surface (2111a), and the reversing surface (2211) of the second active tensioning assembly (22b) 2211) is arranged opposite to the second wedge-shaped surface (2111b); When the wedge (211) moves along the first straight line (L1), it drives the first active tensioning assembly (22a) and the second active tensioning assembly (22b) along the second straight line (L2 ) movement, and the movement directions of the first active tensioning assembly (22a) and the second active tensioning assembly (22b) are opposite. The transmission belt tensioning device according to claim 11, wherein the transmission belt tensioning device (20) further includes a detection component (23), and the detection component (23) includes: first sensor (231); a second sensor (232), spaced apart from the first sensor (231); and An induction piece (233), connected to the transmission arm (221, 221a, 221b); Wherein, when the transmission arm (221, 221a, 221b) is in the first position, the induction piece (233) triggers the first sensor (231); When the transmission arm (221, 221a, 221b) is in the second position, the induction piece (233) triggers the second sensor (232).

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